Fire-door.



W. H. BARRY.

FIRE DOOR.

APPLICATION FILED MAR. 6. 1917.

Patented Apr. 22, 1919.

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FIRE-DOOR.

incense.

Specification of Letters Patent.

Patented Apr. 22, 1919.

Application filed March 6, 1917. Serial No. 152,481.

To all whom it may concern:

Be it known that I, WALTER H. BARRY, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in F ireDoors, of which the following is a full, clear, concise, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

My invention relates generally to an improvement in fire doors and particularly to doors of the counter-balanced vertical panel type for elevators and the like.

Doors of this character are generally employed in storehouses, freight houses, warehouses, manufacturing plants and the like,

'and'are subject to severe conditions of use.

The door of this type is mounted upon the wall side of the elevator shaft and when goods are trucked into and out of the elevator cage, the truck wheels ride over the upper edge of the door panel, tending to bend it down and also tending to bend it outwardly, so that after being subject to severe duty, the door will not close tightly besides being subject to rubbing against the elevator cage.

tion with the accompanying drawings, in

Figure 1 is a perspective view of the front wall of an elevator shaft with a door of this type in the open position at the doorway; and

Fig. 2 is a fragmentary sectional view taken in the line 2-2 of Fig. 1 illustrating the relation of the elevator cage, the door and the wall of the elevator shaft.

The elevator shaft is provided with a suitable wall 1, having suitable doorways at the various floors, each doorway being provided with a sill portion 2 where the shaft communicates with the particular floor of the building. The elevator cage 3 is adapted to be moved vertically up and down and to be stopped at any desired floor so that goods may be transferred from the particular floor to the elevator cage. Each doorway 4: is

provided with a door for closing the same to protect the various floors in the case of fire. The door comprises two panel members 5 and 6 which are provided with outwardly extending flanges 7 running in the vertical guides 8. The flanges 7 are preferably pro vided by employing angle iron frame members having outwardly extending legs as shown in Fig. 1. The main body of each panel is formed of sheet metal, as is shown at 10 in Fi 2, with reinforcing or stifl'ening stays or races 11. The upper and lower edges of each panel are secured to angle iron' frame'members 12 which are joined to the lateral frame members 7. The two panel members 5 and 6 are connected together as shown in Fig. l'by means of a connection consisting ,of-bracket's '13 fastened to'the side of the upper panel member 5' and brackets 14 fasten'ed'to the lowerpanel'member' 6. The brackets- 14 extend outward farther than the bracket members 13 and the two sets of bracket members are connected tosition. The sill member 2 at each do'orway "is provided at its outer corner with an angle iron 18 for reinforcing and binding the edge. A similar angle bar 19 is provided at the inner corner and a plate 20 is secured at the upper surface of the sill 2, this plate being substantially flush with the floor members 21 of the particular floor.

The upper edge of the lower panel 6 is provided with an angle bar 22 which 1s adapted to rest upon the corner angle 18 of the sill. The plate 20 is set back from the edge of the sill a suflicient distance to permit the horizontal leg of the angle bar 22 to lie substantially flush with the plate.

When the elevator cage 3 is brought to a particular floor the floor 28 of the same is brought substantially level with the top of the lower panel 6. Goods which are to be trucked to or from the elevator cage 3 may then be transferred. The truck wheels pass ing over the sill plate 20 and angle bar 22 do not cause damage to the door as previously was the case because of the firm engagement between the angle bar 22 and the supporting angle 18 on the sill 2. This desirable result is attained both because of the positive engagement of the angle bar 22 with the supporting angle 18, and also because of the beam strength of the angle bar 22, particularly the vertical leg thereof. The tendency to force the door sidewise against the elevator cage 3 is also greatly lessened because of the lack of any projection which would permit the truck wheels to impart a lateral thrust to the door panel 6 and also because of the lateral staying strength of the angle bar 2-2- particularly because of the horizontal leg. The angle bar 22 preferably extends across the full width of the doorway. There is no interference with the closing of the door and a marked improvement in operation and durability is secured.

I do not intend to be limited to the precise details shown and described.

I claim:

1. In combination a wall having a doorway therethrough, said doorway having a sill, vertical guides at the sides of said doorway and a rigid door movable in said guides in front of said doorway, said door having a horizontal flange at the upper end substantially along the full width thereof, adapted to engage the edge of said sill the sill having a sunken space at its edge to receive said horizontal flange.

2. In combination a wall having a doorway therethrough, said doorway having sill, a door movable in front of said doorway in a vertical direction, said door having a horizontal flange at its upper end along substantially the full Width thereof, said flange being adapted to engage said sill, a metal plate lying on said sill, said plate being cut away adjacent the edge of the sill to permit the flange to lie flush with the plate and an angle member at the edge of the sill upon which said flange is adapted to rest when the door is open.

8. In combinationia wall for an elevator shaft, said wall having a doorway, a sill member for said doorway, said sill member having an angle iron at the corner adjacent the elevator shaft, the upper surface of the angle sunken below the level of the floor, and a vertically movable door having a pair of angle bars extending across substantially the full width of said door and lying on opposite sides thereof, one of said angle bars having a leg extending horizontally into the doorway and being adapted to rest upon the angle bar of the sill when the door is lowered with its upper surface flush with the floor.

4. In combination, a wall having a doorway therethrough, said doorway having a rigid sill, vertical guides at the sides of the doorway and a door movable in said guides in front of said doorway, the door having a horizontal flange at the upper end substantially along the full width thereof, adapted to rest upon and be supported by said sill throughout substantially its full length when the door is at the lower limit of its movement, the sill having a sunken space at its edge to receive said horizontal flange.

5. In combination, a wall for an elevator shaft, said wall having a doorway, a rigid sill for the doorway, a rigid door for the doorway, movable vertically within the shaft, a flange on the upper edge of the door, eXtending laterally into the doorway substantially the full width of the door, said flange moving vertically .within the doorway and being adapted to be supported when the door is at its lower limit by making parallel engagement with the sill throughout its length.

In witness whereof, I hereunto subscribe my name this 28th day of Feb. A. D. 1917.

WALTER H. BARRY.

Copies 0! this patent may be obtained for five cents each, by addressing the "Commissioner of Patents,

Washington, D. G. 

